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50mm Tapered Drilling Bits 7 Degree for Mining and Quarrying
US$4.80
100-1,999 Pieces
US$4.60
2,000-4,999 Pieces
US$4.40
5,000+ Pieces
Sample price:US$6.00/piece.Request sample
Product profile
Customization
AvailableCustomized
CustomizedLength
65mmModel NO.
KY50-5BBType
Button BitsMaterial
High Carbon SteelUsage
Well Drilling, Ore Drilling,Mining,Quarrying,TunnelingPower Type
PneumaticCondition
NewProcess
Heat TreatmentColor
Golden, Yellow, Customized.Transport Package
Wooden CaseSpecification
38mmTrademark
KaiyuOrigin
Taizhou, ZhejiangHS Code
8207199000Production Capacity
1000000 PCS Per MonthKey features
Wide Diameter Range: Available in diameters from 30mm to 53mm to suit various drilling needs.
Customized Color Options: Offered in Golden, Yellow, or fully customized colors per client request.
High Efficiency Design: Features longer primary drilling time and higher efficiency compared to chisel bits.
Premium Carbide Inserts: Utilizes high-grade tungsten carbide from Boart Longyear for durability.
Multiple Button Configurations: Available with 4, 5, 6, 7, 8, or 9 buttons for different drilling systems.
Long Manufacturing Experience: Factory has specialized in drilling tools and spare parts for over 48 years.
Fast Delivery Capability: Delivery time is 7-15 days with strong capacity to meet customer requirements.
Company profile

Business Type: Manufacturer/Factory, Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2004-06-01Nearest Port: NINGBO PORT, SHANGHAI PORTAverage Response Time: ≤8.28hTerms of Payment: LC, T/T, D/P, etc.
AI-Powered supplier vetting
SummaryKaiyu (Zhejiang) Drilling Tools Co., Ltd. is a China-based limited company identified as both a trading company and manufacturer/factory, specializing in rock-drilling products including button bits, DTH bits and hammers, drill rods, and drill pipes. It reports ISO 9001 certification, six production lines, experienced technical and R&D personnel, and a quality-control system. Stated annual capacities include 120,000 button bits, 60,000 DTH bits, and 6,000,000 chisel bits, with lead times of within 15 workdays in both off-peak and peak seasons. The supplier serves multiple global regions and has export capability through agents and self-operated import/export rights. However, the provided information does not substantiate after-sales service arrangements, financial credibility, product customization, or specific customer cases.
Supplier typeThe supplier is described as a trading company and also as a trading company/manufacturer or factory. Its legal form is a limited company located in Zhejiang, China, indicating a mixed commercial and manufacturing profile.
CertificationsThe supplier explicitly reports ISO 9001:2015 Quality Management System Certification and lists ISO 9001 under its management-system certifications. This supports the presence of a documented quality-management certification.
R&D capabilityThe supplier reports experienced and high-tech personnel, foreign equipment and technologies, unique techniques, specialized equipment, and R&D engineers with 6–10 years of experience. These statements support technical development capability, although no specific patented or newly developed products are identified.
Production capacityThe supplier reports six production lines, quality-control inspection, and annual capacities of 120,000 button bits, 60,000 DTH bits, and 6,000,000 chisel bits. It also states order fulfillment within 15 workdays during both peak and off-peak seasons, supporting a substantial and responsive production capability.
Product Q&A
Q:What is the delivery time for these bits?
A:
The delivery time is typically 7-15 days, and we have strong capacity to meet customer requirements.
Q:Can the color of the bits be customized?
A:
Yes, we offer Golden, Yellow, or fully customized colors based on your requirements.
Q:What materials are used for the bits?
A:
The bits are made from 35CrMoNiV steel and high-quality tungsten carbide inserts.
Q:What is the warranty period?
A:
We provide a comprehensive warranty covering mechanical defects with free parts and labor.
Q:What payment terms do you accept?
A:
We accept T/T, Western Union, L/C at sight, LC, D/P, and other standard international terms.
Send Inquiry
*To:
Kaiyu (Zhejiang) Drilling Tools Co., Ltd
Kaiyu (Zhejiang) Drilling Tools Co., Ltd*Content:
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